Cartridge valve



FIG. 1 is a perspective view of a cartridge valve showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

Broken lines shown in the figures are included for the purpose of illustrating portions of the cartridge valve and form no part of the claimed design. 

CLAIM The ornamental design for a cartridge valve, as shown and described. 